Revert of Add EncodedImageCallback::OnEncodedImage().

webrtc/video/video_encoder_unittest.cc

Index: webrtc/video/video_encoder_unittest.cc
diff --git a/webrtc/video/video_encoder_unittest.cc b/webrtc/video/video_encoder_unittest.cc
index ac006bb872a0515e77b9788c47bebf0292057781..f2c3ea61c46636af85979e7b94945f4aca5e5656 100644
--- a/webrtc/video/video_encoder_unittest.cc
+++ b/webrtc/video/video_encoder_unittest.cc
@@ -85,12 +85,10 @@
 
   class FakeEncodedImageCallback : public EncodedImageCallback {
    public:
-    Result OnEncodedImage(
-        const EncodedImage& encoded_image,
-        const CodecSpecificInfo* codec_specific_info,
-        const RTPFragmentationHeader* fragmentation) override {
-      ++callback_count_;
-      return Result(Result::OK, callback_count_);
+    int32_t Encoded(const EncodedImage& encoded_image,
+                    const CodecSpecificInfo* codec_specific_info,
+                    const RTPFragmentationHeader* fragmentation) override {
+      return ++callback_count_;
     }
     int callback_count_ = 0;
   };